Codemaster #2
Subtitle: How to Write and Decode Secret Messages
Contributors: Jim Frazier (Illustrator)
Publisher: Scholastic
Published: June 1998
Language: eng
Format: Paperback
ISBN-13: 9780590373883
Subjects: Juvenile literature; Cryptography; Children's Books/Ages 9-12 Nonfiction; Children's 9-12 - Activity Books; Children: Grades 2-3; Games & Activities - General; Activity Books - General; Ciphers